Master Degree / Yüksek Lisans Tezleri
Permanent URI for this collectionhttps://hdl.handle.net/11147/3008
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Master Thesis Function Synthesis of 2-Loop And/Or 2-Dof Mechanisms(01. Izmir Institute of Technology, 2023) Kiper, Gökhan; Kiper, Gökhan; 03.10. Department of Mechanical Engineering; 03. Faculty of Engineering; 01. Izmir Institute of TechnologyKinematic synthesis problems are important in mechanism and machine science. This thesis focuses on function synthesis. The synthesis of different mechanisms with 1 and 2 degrees-of-freedom (dof) are issued by using least squares and Chebyshev approximations. There are various studies with these approaches in the literature. However, there are not many studies of function synthesis of 2-dof mechanisms in the literature. The aim is to study function synthesis of 2-loop and 2 dof mechanisms. 2-dof planar 5R mechanism, 1-dof Bennet 6R mechanisms, 2-dof 7R double-spherical mechanism and finally 7R planar 2-dof mechanism are worked out for function synthesis. It is shown that the function synthesis problems can be solved analytically and semi analytically. The formulations are applied using MS Excel and the results were verified using Solidworks software. It is seen that the numerical results give reliable results and construction parameters are successfully determined.Master Thesis Function Generation Synthesis of Planar Mechanisms as a Mixed Problem of Correlation of Crank Angles and Dead-Center Design(Izmir Institute of Technology, 2022) Kiper, Gökhan; Kiper, Gökhan; 03.10. Department of Mechanical Engineering; 03. Faculty of Engineering; 01. Izmir Institute of TechnologyKinematic synthesis of mechanisms is generally divided into three groups. One of them is function synthesis. In function synthesis, the design of correlation of crank angles and dead dead-center position stand out. These problems have been clearly defined and solved separately. But in some cases, problems may be encountered that require both correlation of crank angles and dead dead-center design. Such problems are called mixed function generation problems. In this thesis, an overview of these mixed function generation problems has been given and many problems have been solved analytically or semi-analytically. The solutions of all problems including three positions for the four-bar mechanism and the solution of a problem including four positions for a four-bar mechanism have been addressed. A problem including 3 positions and a problem including 4 positions for a slider-crank mechanism have been addressed. All solutions have been reduced to univariate equation and a fast solution has been found. Thus, link lengths can be found quickly by changing the problem inputs. Numerical solutions of all problems have been demonstrated using Excel.